
Malleable cast iron fittings threaded to ISO 7-1 - Amendment 1: Chemical composition of the zinc coating - adjustment to actual requirements regarding hazardous substances
出版:International Organization for Standardization

專家解讀視頻
Malleable cast iron fittings threaded to ISO 7-1 - Amendment 1: Chemical composition of the zinc coating - adjustment to actual requirements regarding hazardous substances
出版:International Organization for Standardization
專家解讀視頻